Kenaniah was the leader of the Levites. He was in charge of the singing because he was good at it.
David told the Levite leaders to appoint other Levites as musicians. He wanted them to make a joyful sound with lyres, harps and cymbals.
Mattithiah, Eliphelehu, Mikneiah, Obed-Edom, Jeiel and Azaziah played the harps according to sheminith.
Berekiah and Elkanah guarded the ark.
David was wearing a robe made out of fine linen. So were all the Levites who were carrying the ark. And so were the musicians and the choir director Kenaniah. David was also wearing a sacred linen apron.